EP1289403B1 - Washing agent dispensing device for a household washing machine, in particular a dishwasher - Google Patents

Washing agent dispensing device for a household washing machine, in particular a dishwasher Download PDF

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Publication number
EP1289403B1
EP1289403B1 EP01917352A EP01917352A EP1289403B1 EP 1289403 B1 EP1289403 B1 EP 1289403B1 EP 01917352 A EP01917352 A EP 01917352A EP 01917352 A EP01917352 A EP 01917352A EP 1289403 B1 EP1289403 B1 EP 1289403B1
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EP
European Patent Office
Prior art keywords
dispensing
actuator
washing agent
washing
seat
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP01917352A
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German (de)
English (en)
French (fr)
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EP1289403A1 (en
Inventor
Daniele Cerruti
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Eltek SpA
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Eltek SpA
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Publication date
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Publication of EP1289403A1 publication Critical patent/EP1289403A1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4409—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants by tipping containers or opening their lids, e.g. with the help of a programmer
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/026—Devices for adding soap or other washing agents the powder or tablets being added directly, e.g. without the need of a flushing liquid

Definitions

  • the present invention relates to a device for dispensing washing agents for a household washing machine, in particular a dishwasher, as described in the preamble of the annexed claim 1.
  • washing machines are usually equipped with a device for dispensing washing agents, namely washing detergents and additives in powder and/or liquid form; typically, the latter typically consisting of softening media for laundry washing machines and rinsing aids for dishwashing machines.
  • washing agents namely washing detergents and additives in powder and/or liquid form
  • the latter typically consisting of softening media for laundry washing machines and rinsing aids for dishwashing machines.
  • the dispenser of washing agents usually comprises a body made from plastic material, partially built-in on one of the vertical surfaces delimiting the washing tub of the machine; in most cases, this vertical wall is the dishwasher inner door, i.e. the side of the machine front loading door facing inside the wash tub.
  • the above body In its front zone, the above body define a space, with a small tilting or sliding cover, for containing a given amount of detergent, usually in powder or in the form of a tablet, being necessary for performing a washing cycle.
  • a tank for containing a second liquid washing agent, typically a rinsing aid; in general, this tank has a capacity such to contain an amount of liquid agent being sufficient for several washing cycles, so that the machine user has only to fill periodically the tank through a proper plug.
  • a second liquid washing agent typically a rinsing aid
  • a small chamber is associated to the above tank, which is used for dosing the amount of rinsing aid to be delivered during a washing cycle; to this purpose the dosing system of the rinsing aid exploits the opening-closing movement of the machine door, i.e. horizontal when open and vertical when closed, to supply some rinsing aid from the tank to the dosing chamber; during the machine operation, a programmer or timer operates an actuator to free a discharge outlet in correspondence with the dosing chamber and let the dosed amount of rinsing aid flow from the latter into the washing tub of the dishwasher.
  • the known technique mentioned above requires the dispenser to be fixed to the dishwasher door, exploiting its opening-closing movement for the dosage of the rinsing aid required for a washing cycle; for this reason, application of the above dispensers is restricted to washing machines fitted with a door tilting around a horizontal axis.
  • the dispenser is designed to have the opening of the space for containing the detergent facing upwards when the machine door is open; therefore, after the door has been brought in horizontal position, the user can fill the space with the detergent, close its cover and then bring the door back to its closed position again;
  • the cover of the space for containing the detergent is usually a tilting or sliding cover; its opening at an appropriate time during the washing cycle to let the detergent fall down by gravity in the washing tub is controlled by a machine programmer or timer.
  • Some known washing machines have no tilting door, but the latter is linearly sliding on appropriate guides; with reference to a double-basket dishwashing machine, reference can be made to the solution described in FR-A-2.674.426 ; other known dishwashers, vice-versa, have only one basket for containing the crockery to be washed, which is designed like a sliding drawer, whose front wall realizes in fact the machine door.
  • the dispenser of the washing agents is fixed to the machine door or anyway to a wall or vertical surface delimiting the washing tub; as a result, the dispenser is always on the same resting plane, independently from the door opening-closing condition.
  • the dispensers used on such machines have to be equipped with a proper electric pump, capable of dosing and dispensing the liquid washing agent.
  • these dispensers have a seat for housing a container, the latter being open upwards, partly tiltable and hinged on its lower end.
  • the cited container can be partially extracted from its seat and inclined outside the dispenser body, for filling it with the detergent dose; a reverse movement of the container puts it back in position in the housing seat defined in the dispenser body.
  • This solution is complex and expensive, since it requires the presence of a suitable hydraulic circuit for conveying water inside the above detergent container to draw the detergent out and flow it into the machine washing tub; this solution is further complex, expensive and critical, since such an hydraulic circuit has to be partially housed within the machine door.
  • a dispenser comprising a rotatable body having two pockets normally cloased by a cover, and adapted to contain a quantity of detergent to be dispensed after a rotation of the dispenser along a predetermined arc, so as to open the first or the second pocket in order to discharge said detergent.
  • dispensing devices are also known for powder detergents, having a long autonomy, which are mounted on the machine door are, which are equipped with a tank for containing a quantity of detergent being sufficient to perform a plurality of washing cycles, as well as of means for dosing and dispensing single predetermined doses of such a detergent.
  • the dosing and dispensing means comprise a substantially cylindrical body, which is angularly movable and bears one or more recesses, located under the outlet mouthpiece of the detergent tank.
  • a suitable actuator rotates the cylindrical body until one of its recesses is brought in correspondence with the above outlet mouthpiece; in this way, some of the detergent contained in the tank fill this recess by gravity.
  • the cylindrical body is rotated by about 180°, taking the above recess in correspondence with a lower discharge outlet facing on the machine washing tub, wherein the detergent contained in the recess can fall down by gravity.
  • the filling of the detergent is more comfortable for the user, since this operation can be performed at intervals and with the machine door half-open; in addition, in certain solutions, the detergent tank can be removed, so making the filling extremely comfortable for the user (see for example the above cited IT-A-1.242.282 ).
  • the long autonomy dispensers of the type mentioned above have several drawbacks.
  • a first drawback is due to a considerable manufacturing complexity of the device, which requires the use of many components and kinematic motions, as well as the presence of an actuator suitable to produce the rotation of the dosing and dispensing drum, being subject to many frictions of movement.
  • the device against the outside environment to avoid possible deterioration of the detergent contained in the tank due to humidity and water being present within the machine tub during washing; this implies the use of suitable sealing arrangements, in particular peripheral ones, which are subject to wear and which further complicate the device from its manufacturing and function standpoint, causing a further costs increase.
  • the present invention has the aim of solving the above drawbacks by means of a dispensing device of washing agents for a washing machine, apt to dispense a quantity of washing agent being necessary for the execution of a treatment cycle performed by the machine, which is of simple manufacturing, comfortable in use, reliable in operation and having a low cost.
  • a first aim of the present invention is to provide a dispenser wherein the filling of the washing agent can be performed in a comfortable and easy position for the user, both when the device is fixed to a sliding door or constantly vertical surfaces and when the device is fixed on tilting doors.
  • a further aim of the present invention is to provide a dispenser which comprises a minimum number of movable parts, without requiring any complex arrangements for realizing the dispensing the washing agent.
  • a further aim of the present invention is to provide a dispenser of washing agents which employs simple and reliable actuating and sealing means.
  • a further aim of the present invention is to provide a dispenser which can be assembled indifferently on tilting doors or sliding doors or constantly vertical surfaces.
  • One or more of said aims are attained, according to the present invention, by a device for dispensing washing agents for a household washing machine, in particular a dishwasher, incorporating the features of the annexed claims, which form an integral part of the present description.
  • reference 1 indicates as a whole a dispenser of washing agents realized according to the teachings of the present invention, to be used in a washing machine; in the herein given example, such a machine is supposed to be a dishwasher.
  • the dispenser 1 has a main body 2, which can be housed at least partially in an opening provided in the counter-door of the machine door, the latter being either a tilting or sliding door; more in general, the body 2 can be fixed to any vertical surface delimiting a washing tub of the washing machine.
  • the body 2 of the dispenser 1 is realized by welding a front piece to a rear piece, both made from thermoplastic material, indicated in Fig. 2 with 2A and 2B, respectively.
  • Reference 3 indicates as a whole a tilting container, being provided for receiving a determined dose of detergent which is required to perform a wash cycle, which is assumed here to be a powder detergent; reference 3A indicates gripping means defined on the front surface of the container 3, for allowing an easy tilting or opening of the latter, as further described; the container 3 can be easily moulded in one piece in thermoplastic material.
  • Reference 4 indicates a seat defined in the body 2 for housing the container 3; in general, the seat 4 has a bigger size than the container 3, so as to leave a portion of the former - not occupied by the latter - facing directly the inside of the machine washing tub. In the specific example, the seat 4 has a shape in plan substantially elongated downwards over the overall dimensions of the container 3, so that the lower portion of it forms an outlet path for the detergent, as further described.
  • a tank for containing a certain quantity of liquid washing agent, which here is assumed to be a rinsing aid, not visible in the figures; additionally, the dispenser 1 has suitable means for dosing and dispensing such a rinsing aid; these means for dosing and dispensing, whose realization is apart from the aims of the present invention, can be of any known type and therefore they are not represented in the figures.
  • Reference 5 indicates the plug of an opening in communication with the above cited tank, for filling the latter with the rinsing aid.
  • Reference 6 indicates a discharge opening through which a dose of rinsing aid can flow down into the washing tub of the dishwasher, in a known way, whereas 6A indicates an indicator for the level of the rinsing aid contained in the relevant tank.
  • reference 7 indicates a generic actuating device, being fixed in a known way to the piece 2A of the body 2, being provided for producing an angular movement of the container 3 according to the procedures described in the following.
  • the actuating device 7 may consist of a thermal or thermoelectric actuator, called thermo-actuator in the following, which has a general structure as described in WO-A-98/32141 , whose relevant teachings are herein incorporated by reference.
  • thermo-actuators as the one indicated with 7 comprise an outer housing, within which a body is located, made from an electric and thermal conducting material (e.g. metal) connected to an electric heater; in this body a chamber is defined, for containing a thermally expandable material (e.g. wax) and at least partially a thrusting element, apt to displace a piston protruding from the outer housing; typically, the electric heater consists of a PTC resistor with a positive temperature coefficient, electrically supplied by means of two terminals.
  • an electric and thermal conducting material e.g. metal
  • the electric heater consists of a PTC resistor with a positive temperature coefficient, electrically supplied by means of two terminals.
  • the electric heater supplied with current When the supply terminals are live, the electric heater supplied with current generates heat and causes the thermally expandable material to expand: such an expansion produces a linear displacement of the thrusting element outside the relevant body, causing a movement of the piston until a determined position, generally established by a mechanical stop, is reached, which can be defined as a final work position.
  • the heater cools down and the thermo-expandable material shrinks, so causing the piston and pusher to return to their initial rest position, eventually with the aid of an elastic recall element, such as a spring.
  • Thermo-actuators as above are mono-stable devices, i.e. besides their normal rest position they ensure only one work stroke and one final work position. Such actuators offer important advantages in view of the considerable working strength or power they are able to develop related to their small size, the low costs, the low consumption and the noiseless operation.
  • reference 8 indicates a linear toothed element or rack element engaged to a first toothing 9A of a wheel or pinion 9; the wheel 9 has a second toothing 9B being engaged on the toothing defined at the end of a shaft 10, which runs across the body 2 of the device 1 as further described.
  • the piston 7A of the thermo-actuator 7 is made integral to the rack element 8, so that the linear movement of the former also causes a linear movement of the latter. Therefore, as it can be realized from the arrangement shown in Fig. 2 , the linear movement produced by the piston 7A can be translated into a rotary movement of the shaft 10, through the rack element 8 and toothed wheel 9.
  • Fig. 4 shows how the container 3 has an inner space 3B being open upwards, apt for containing the quantity of detergent being necessary for performing a washing cycle; from this figure, as well as from Fig. 9 , it can also be noticed how the shaft 10 is integrated to a fork element, indicated as a whole with 11, for supporting the container 3 and being located in the seat 4.
  • the fork element 11 clearly visible in Fig. 9 , consists of a central plate 11A, at the two side ends of which flanges 11 B are defined, each one having a respective through hole 11C; the holes 11C receive pins 3C, also shown in Fig. 10 , defined on relief 3D departing from the rear surface of the container 3; the fork element 11 can be advantageously moulded in one piece of thermoplastic material, or over-moulded or co-moulded with the shaft 10, should the latter be made from metal material.
  • the container 3 is mounted tiltable with respect to the fork element 11; thus, the container 3 can be partially tilted outside the seat 4, for filling the space 3B with the detergent; such a situation is just illustrated in Figs. 5 and 6 .
  • thermo-actuator 7 since the fork element 11 is integral to the shaft 10, the rotation of the latter produced by the thermo-actuator 7 is also capable of rotating the container 3 by about 180°; thus, as said above, the opening of the space 3B can be brought in correspondence with the lower area of the seat 4, facing directly the inside of the washing tub, in order to release the detergent dose; this situation is also illustrated in Figs. 7 and 8 .
  • the surface of the lower zone of the seat 4 is substantially inclined, with the purpose of facilitating a down fall of the detergent into the machine washing tub and the washing of this seat through the water splashes, after the container 3 has been upturned by the thermo-actuator 7, as described above.
  • FIGs. 5 and 6 it can also be noticed how an intermediate wall is defined within the seat 4, extending substantially like a circular sector or circumference arch, indicated with 4A, which delimits an inner space receiving the rear portion of the container 3, i.e. the one wherein the space 3B is defined; consequently, a gap or interstice 4B is delimited between this wall 4A and the seat 4.
  • This interstice 4B is apt to receive a projection or wall 3E, departing from the rear surface of the front side of the container 3, when the container 3 is inserted in its relevant seat 4 ( Figs. 3 and 4 ); as it can be noticed, in particular from Fig. 10 , the cited wall 3E extends substantially like a circular sector or circumference arch, like the wall 4A, so as to enter the interstice 4B.
  • the aim of the walls 3E and 4A, as well as of the interstice 4B is to realize a labyrinth sealing arrangement, having the purpose of preventing a contact between the detergent contained in the recess 3B and the water circulating inside the machine washing tub, prior to the dispensing phase.
  • FIG. 9 it can also be noticed how at least one end of the wall 4A has an inclined length or plane, indicated with 4C, whose functions will be explained in the following with reference to the operation of the dispenser 1 according to the present invention.
  • Figs. 11 and 12 illustrate a detail of the coupling between the fork element 11 and the container 3. From these figures it can be seen in particular how, on the rear relieves 3D of the container 3, respective small teeth or bosses 3F are defined (being clearly visible also in Fig. 10 ), which are apt to interact with the lower edge of the central plate 11 A of the fork element 11.
  • the container 3 is located within the seat 4, i.e. in the condition illustrated for example in Figs. 3 and 4 ; as it can be noticed, in this situation, the teeth 3F result in being positioned under the lower edge of the plate 11A, so to hinder an independent angular movement of the container 3 outside its seat.
  • a soft manual pull on the container 3 through the proper gripping means 3A makes it possible for the teeth 3F to pass over the lower edge of the plate 11A, in order to incline the container 3 towards the outside of the respective seat, i.e. in the position illustrated in Fig. 12 and Figs. 5 and 6 . It should be noticed that this movement is allowed by a relative elasticity of the coupling between the fork element 11 and the container 3, and of the material employed for manufacturing the two pieces.
  • the user can push the container 3 back into the respective seat 4, so realizing a new pass over movement of the teeth 3F on the lower edge of the plate 11A, so returning to the situation of Fig. 12 .
  • the teeth 3F and their interaction with the lower edge of the plate 11A of the fork element 11 have the function of realizing means, in particular of the snap-on type, for preventing an undesired tilting over or opening of the container 3.
  • LS indicates as a whole a dishwasher fitted with a tilting loading door SP
  • CP indicates the inner or counter-door, i.e. the surface of the door SP facing inside the washing tub of the machine.
  • the user After loading the crockery to be washed in the washing tub and with the door half opened, as illustrated in Fig. 13 , the user opens the container 3, i.e. tilts it outside the respective seat 4, as previously described with reference to Figs. 11 and 12 .
  • the user can therefore fill the space 3B of the container 3 with the dose of detergent being necessary for performing the washing cycle; then the container 3 can be pushed inside the seat 4, as per the same procedure previously described with reference to Figs. 11 and 12 .
  • the user can close the door SP of the dishwasher LS and start the washing cycle, in a known way. It should be noticed that in the initial phases of the washing cycle, i.e. before the dispensing of the detergent, the inside of space 3B is adequately insulated from water splashes eventually hitting the dispenser 1.
  • any water eventually entering the open lower zone of the seat 4 is not able to reach the opening on top of the space 3B; on the other hand, the water investing frontally the container 3 or the part of the body 2 above the seat 4 is not able to enter the latter, by virtue of the labyrinth sealing arrangement provided by the walls 3E and 4A, and the interstice 4B.
  • the control system of the machine electrically supplies the thermo-actuator 7; following this power supply, the piston 7A moves linearly (to the right, with reference to Fig. 2 ), causing an analogous linear displacement of the rack element 8; the wheel 9 is then moved angularly, so causing a consequent angular movement of the shaft 10.
  • the rotation of the shaft 10 determines an analogous rotation of the fork element 11, causing the container 3 to move to the operating position illustrated in Figs. 7 and 8 .
  • the stroke of the piston 7A and the ratios between the toothings of the rack element 8, the wheel 9 and the shaft 10 are advantageously provided for obtaining an angular movement of about 180° of the container 3, up to a position like shown in Figs. 7 and 8 , following an electric supply cycle of the thermo-actuator 7.
  • thermo-actuator 7 After a lapse of time deemed to be sufficient for performing the above dispensing (a few tens of seconds); the power supply to the thermo-actuator 7 is cut off; in this way, the piston 7A goes backwards to its initial position illustrated in Fig. 2 , through the action of an elastic recall element, such as a spiral spring, located within the body of the thermo-actuator 7 itself.
  • an elastic recall element such as a spiral spring
  • the washing cycle then goes on according to known procedures.
  • the device can be modified for any applications where a partial dissolving of the detergent is desired before its actual dispensing; in this case, the walls 3E and 4A of the device may for example provide for suitable breaks, to let water portions to enter the space 3B; the same effect may be obtained through suitable passages on the front side of the container 3, above the gripping means 3A.
  • the device according to the present invention can also be fitted with suitable means for making the container 3 to go back automatically in the respective seat 3, for example in order to avoid that the user may accidentally leave the container in the position of Figs. 5 and 6 after the space 3B has been filled with detergent.
  • such means may consist of an appropriate elastic recall element, such as a spring, operating for example between the fork element 11 and the container 3, in order to maintain the latter in the position of Figs. 3 and 4 ; in this case, of course, the snap-on opening/closing arrangement of the container 3 described with reference to Figs. 11 and 12 will be omitted.
  • an appropriate elastic recall element such as a spring
  • the closure of the container can be ensured in an automatically way at the beginning of a detergent dispensing step, by virtue of the presence of the inclined length or plane 4A, featuring the end of the wall 4A of the seat 4.
  • the container 3 can be automatically inserted in the respective seat 4, so avoiding any risks of damage to the device.
  • the piece 2A, wherein the seat 4 is defined can be obtained from the moulding of a thermoplastic material with elementary operations; the same applies to the container 3 and the fork element 11, which may comprise, or be over-moulded or co-moulded, with the shaft 10; as it can be imagined, also the assembly operations of the various components of the dispenser previously described are quite simple.
  • the insulation of the space 3B before the detergent dispensing, if required, is obtained through the labyrinth arrangement provided by the walls 3E and 4A, which are manufactured by moulding the pieces 2A and 3 in thermoplastic material, and therefore without any additional costs.
  • the device 1 is conceived to have the container 3 never coming into contact with surfaces of the body 2 or other peripheral sealing elements, during its angular movement, so as to avoid any frictions; in this connection, the only friction occurring during the operation of the device 1 are due to the fork element 11, for its portion being inserted in the hole passing through the body 2A, along which sealing means can eventually be provided.
  • the container 3 should not necessarily have a cylindrical form, so differing from the known long autonomy dispensing devices, which on the contrary requires a drum shaped dosing body, in order to obtain the required sealing.
  • the invention has been described with specific reference to the dispensing of a powder detergent; however it is clear its application is also possible in association with other types of washing agents, both in solid form (such as detergent tablets) and liquid form; it is also clear that the present invention can be used also on washing machines differing from dishwashers, such as laundry washing machines.
  • the dispenser 1 is mounted on a tilting door, however, it is clear that, in general terms, it can be mounted also on any constantly vertical surface delimiting the washing tub of a machine; for example, the device 1 can be advantageously applied to any washing machine fitted with a door linearly sliding on appropriate guides, or on machine having only one basket for the crockery, designed as a sliding drawer, the front wall of which realizes the machine door.
  • Fig. 14 represents such a further possible application, where LS1 indicates a dishwashing machine as a whole, fitted with only one basket CS in the form of a sliding drawer; it should be noticed that also in this case the device 1 according to the present invention is mounted on the inner surface of the front side of said basket CS.
  • thermo-actuator has been described with reference to the use of a thermo-actuator, but it is clear that it can also be implemented using other actuating means, such as for example a motor with a likely gear reduction unit, or an electromagnetic actuator or a pneumatic actuator, etc.
  • the type of coupling between the fork element 11 and the container 3 may change from the coupling described in the previous example, for example by providing pins on the flanges 11 B and suitable seats fit to receive these pins on the container 3, or by a partially spherical coupling.
  • the device may by provided with specific peripheral sealing elements, for example being inserted in the gap 4B.
  • the dispenser 1 described by way of example may be fitted with a kinematic motion apt to produce at different times both the actuation of the container 3 and of a dispenser for a second liquid washing agent, by means of one same actuating mean 7, as per the techniques described for example in EP-A-0 602 572 , or FR-A-2.593.379 , or DE-A-33 04 037 .
  • Fig. 15 illustrates schematically the rear part of a dispensing device manufactured according to the proposed variant embodiment of the invention, where DB indicates as a whole a dispenser of a liquid washing agent and AT a dosing and dispensing element being part of the dispenser itself, coupled to the rack element 8.
  • the movement of the rack element 8 determined following a power supply to the thermo-actuator 7, as required for realizing the up-turning of the container 3, will also cause the displacement of the element AT to a first operating condition, through which the dosage is obtained of a certain amount of the liquid washing agent contained in the relevant tank.
  • control system of the machine keeps the thermo-actuator 7 supplied until the dispensing of the liquid washing agent is required.
  • thermo-actuator 7 At that time (for example during a rinsing step), the power supply to the thermo-actuator 7 is interrupted, with a consequent return of the piston 7 and the rack element 8 to their initial positions; this also causes the element AT to return to the position represented in Fig. 15 , where this movement allows the dispensing of the amount of liquid washing agent previously dosed to the washing tub, through the discharge outlet 6 of Fig. 1 .
  • Fig. 16 illustrates a further possible variant embodiment of the present invention, according to which the seat of the plug 5 is designed to have the respective loading inlet of the rinsing aid facing upwards; this configuration also allows an easy loading of the liquid washing agent when the dispenser 1 is fixed to a linearly sliding door, or anyway on a constantly vertical surface; on the contrary, should the dispenser I be fastened to a tilting door, the above configuration allows the filling of the rinsing aid tank also with the door being half opened.
  • Fig. 17 illustrates a further possible variant embodiment of the present invention, where the body of the device 1 is realized so that, following its fixing, the rotation axis of the container 3, consisting of the fork element 11, is inclined to the horizontal and/or to the fastening wall.
  • the container 3 is inclined, as well as the seat 4, its wall 4A and relevant interstice 4B.
  • the seat 4 results in being directly downwards opened, so that during the dispensing phase the detergent contained in the space 3B can freely fall directly into the tub, without meeting any hindrances or walls (for in the embodiments of Figs. 3-8 ). It should be noticed that this implementation is particularly advantageous for employing the device according to the present invention to dispense detergents in the form of tablets or small plates.
  • thermo-actuator 7 may be replaced by a thermo-actuator apt to exert a pull on the rack element 8, instead of a thrust.
  • the actuating arrangement employed may comprise an additional external spring, besides the one being available within the thermo-actuator body, for bringing the rack element 8 to its initial position, following a power cut-off to the thermo-actuator.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Domestic Plumbing Installations (AREA)
EP01917352A 2000-03-29 2001-03-26 Washing agent dispensing device for a household washing machine, in particular a dishwasher Expired - Lifetime EP1289403B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITTO000300 2000-03-29
IT2000TO000300A IT1320650B1 (it) 2000-03-29 2000-03-29 Dispositivo dispensatore di agenti di lavaggio per una macchina dilavaggio domestica, in particolare una lavastoviglie.
PCT/IB2001/000481 WO2001072198A1 (en) 2000-03-29 2001-03-26 Washing agent dispensing device for a household washing machine, in particular a dishwasher

Publications (2)

Publication Number Publication Date
EP1289403A1 EP1289403A1 (en) 2003-03-12
EP1289403B1 true EP1289403B1 (en) 2010-04-28

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EP01917352A Expired - Lifetime EP1289403B1 (en) 2000-03-29 2001-03-26 Washing agent dispensing device for a household washing machine, in particular a dishwasher

Country Status (8)

Country Link
US (1) US7063092B2 (it)
EP (1) EP1289403B1 (it)
AU (1) AU2001244433A1 (it)
CA (1) CA2404342A1 (it)
DE (1) DE60141958D1 (it)
ES (1) ES2344727T3 (it)
IT (1) IT1320650B1 (it)
WO (1) WO2001072198A1 (it)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004063284A1 (de) * 2004-12-29 2006-07-13 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit einer Vorrichtung zur Auflösung von Reinigungsmittel
DE102004063276A1 (de) * 2004-12-29 2006-07-13 BSH Bosch und Siemens Hausgeräte GmbH Zugabevorrichtung für Geschirrspülmaschinen für ein insbesondere tablettenförmiges Reinigungs- oder Spülmittel sowie Geschirrspülmaschine mit einer Zugabevorrichtung
US7699063B2 (en) * 2005-08-18 2010-04-20 Maytag Corporation Dispenser for a drawer-type dishwasher
DE102005061994A1 (de) * 2005-12-23 2007-07-19 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit verbesserter Anordnung der Zugabeeinrichtung in der Tür
US7832417B2 (en) * 2006-04-20 2010-11-16 Maytag Corporation Dispenser for a drawer-type dishwasher
KR101268756B1 (ko) * 2006-04-25 2013-05-29 엘지전자 주식회사 식기 세척기, 식기 세척기의 린스투입장치 및 방법
DE102006061151A1 (de) 2006-12-22 2008-06-26 BSH Bosch und Siemens Hausgeräte GmbH Drehbarer Reinigerbehälter
DE102007050920B3 (de) * 2007-10-23 2008-12-04 Miele & Cie. Kg Dosiervorrichtung für flüssige oder zähflüssige Behandlungsmittel einer Waschmaschine und Waschmaschine
DE102008042758A1 (de) * 2008-06-23 2009-12-24 BSH Bosch und Siemens Hausgeräte GmbH Aufnahmebehälter für eine Reiniger-Kartusche sowie Geschirrspülmaschine
DE102009033477A1 (de) * 2009-07-16 2011-01-20 Rudolf Lonski Datenübertragungsvorrichtung für Haushaltsmaschinen , Funktionskomponente und Haushaltsmaschine
KR20110083833A (ko) * 2010-01-15 2011-07-21 삼성전자주식회사 세탁기
EP2392718B1 (en) * 2010-06-01 2015-08-12 Electrolux Home Products Corporation N.V. Washing machine
RU2607778C2 (ru) 2012-09-17 2017-01-10 ЭлДжи ЭЛЕКТРОНИКС ИНК. Устройство обработки белья
WO2014075848A1 (en) * 2012-11-13 2014-05-22 Arcelik Anonim Sirketi A laundry washing and/or drying machine with a steam generator
US8881748B2 (en) * 2012-12-18 2014-11-11 Whirlpool Corporation Dishwasher detergent dispenser
US9723969B2 (en) * 2012-12-31 2017-08-08 Arcelik Anonim Sirketi Washer comprising a liquid detergent dosing unit
ITTO20130255A1 (it) 2013-03-27 2014-09-28 Eltek Spa Dispositivo attuatore con posizioni stabili di funzionamento
ITTO20130254A1 (it) 2013-03-27 2014-09-28 Eltek Spa Dispositivo attuatore
GB2523557B (en) * 2014-02-26 2020-09-16 Scot Young Res Limited Dispensing apparatus
US10898056B2 (en) * 2016-06-13 2021-01-26 BSH Hausgeräte GmbH Metering device for shaped cleaning-agent bodies in domestic dishwashers
US10077526B2 (en) * 2016-09-13 2018-09-18 Whirlpool Corporation Laundry treating appliance and dispenser
US9895046B1 (en) 2016-12-27 2018-02-20 Midea Group Co., Ltd. Dishwasher rack lift system
US10159398B2 (en) 2016-12-27 2018-12-25 Midea Group Co., Ltd. Dishwasher rack system
CN107083656B (zh) * 2017-04-11 2019-08-27 海信（山东）冰箱有限公司 一种洗衣机

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212675A (en) * 1962-12-31 1965-10-19 Gen Electric Additive dispenser for dishwashers
US3876117A (en) * 1974-05-16 1975-04-08 Gen Motors Corp Washing agent dispenser for dishwasher
US3915349A (en) * 1974-06-14 1975-10-28 Gen Electric Laundry additive dispenser
US4009801A (en) * 1975-02-14 1977-03-01 General Motors Corporation Washing agent dispenser for dishwasher
US4149656A (en) * 1977-05-20 1979-04-17 General Electric Company Dishwasher additive dispensing apparatus having a movable measuring cup
US4265100A (en) * 1980-01-14 1981-05-05 Whirlpool Corporation Pivotal siphon bleach dispenser for automatic washer
IT1242282B (it) 1990-03-23 1994-03-03 Eltek Spa Dispositivo serbatoio-dosatore, a grande autonomia, rimovibile, per macchine lavatrici, per erogare successive dosi prestabilite di detersivi in polvere.
US5310090A (en) * 1993-03-30 1994-05-10 White Consolidated Industries, Inc. Dishwasher detergent dispenser
IT1294892B1 (it) * 1997-09-25 1999-04-23 Elbi Int Spa Dispositivo erogatore di agente di lavaggio per una macchina lavaviglie.
US5989860A (en) * 1997-12-12 1999-11-23 Incyte Pharmaceuticals, Inc. Human isomerase homologs

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ITTO20000300A0 (it) 2000-03-29
ES2344727T3 (es) 2010-09-06
US20030106570A1 (en) 2003-06-12
DE60141958D1 (de) 2010-06-10
CA2404342A1 (en) 2001-10-04
ITTO20000300A1 (it) 2001-09-29
US7063092B2 (en) 2006-06-20
EP1289403A1 (en) 2003-03-12
WO2001072198A1 (en) 2001-10-04
IT1320650B1 (it) 2003-12-10
AU2001244433A1 (en) 2001-10-08

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